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Map of the age of rocks in North America
The North America Tapestry of time & terrain. Ages of the bedrock – red (oldest) to blue, green, yellow (newest). Via
Read MoreGoogle search: “gun control” vs “gun shops”
Google looked at the searches for “gun control” compared with “gun shop” before the San Bernardino shooting on Wednesday and
Read MoreThe 15,000-year history of a river in Oregon
Via thisiscolossal.com
Read MoreSoils of the Panoche Hills
Via arcg.is
Read MoreEl Niño – affected areas
Via fao.org
Read MoreTwister Dashboard: Exploring Three Decades of Violent Storms
Although tornadoes can occur throughout the year, prime time for twisters in the U.S. is spring and early summer. Larger
Read MoreA vast river network once crisscrossed the Sahara
Via gizmodo.com
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